Become a member

Articles

TEST OF A GREENHOUSE USING LOW TEMPERATURE HEATING

Article number
170_25
Pages
219 – 226
Language
Abstract
The following results are based on measurements taken between September 1983 and June 1984 :

  • an ethylene thermal screen (EVA) and a chromecoated one (Hechotherm) showed reductions in the nightly thermal transmittance through the roof of 35 % and 47 % respectively, (52 % if they are used simultaneously).

  • below the screens, the leaf temperature of the plant was in average 0.4 K higher than for unscreened plants at the same air temperature

  • the influence of the sky temperature is important.
    It may lead to variations in the heat requirement of more than 50 %

  • as wind and sky temperature effects are interdependent a method for evaluating them separately has been found.

Publication
Greenhouse Construction and Covering Materials
Authors
O. Jolliet, M. Bourgeois, L. Danloy, J.-B. Gay, S. Mantilleri, C. Moncousin
Keywords
Full text
https://doi.org/10.17660/ActaHortic.1985.170.25
Online Articles (29)
Ing. J.C. Spek
C. Zabeltitz
K.-H. Strauch
R. BRUN | J. LAGIER
L.A. Bellamy | G.T. Ward
K.V. Garzoli
Th.J. Blom | F.J. Ingratta
W. Roberts | Joel C. Simpkins | D. Mears
D. de Halleux | J. Deltour | J. Nijskens | A. Nisen | S. Coutisse
A.M.G. van den Kieboom | J.A. Stoffers
Ing. D. Waaijenberg
H. Bredenbeck
B. Landgren
G.-W. Bruns
M. Grafiadellis
G. Weimann
G. Weimann
H. Verlodt | S. Baeten | S. El Fahem | Y. Harbaoui
S. Baeten | H. Verlodt | S. El Fahem | Y. Harbaoui
M. Rüther
B.J. Bailey | D.L. Critten
Marius G. Amsen | Otto F. Nielsen
J. Meyer
T.H. Short | J. Huizing | J.J. Breuer
O. Jolliet | M. Bourgeois | L. Danloy | J.-B. Gay | S. Mantilleri | C. Moncousin
J.I. Montero | N. Castilla | E. Gutierrez de Ravé | F. Bretones
S. Porcelli | R. D'Amore | F.P. Monopoli
T. O'Flaherty | M.J. Maher | J. Grant